Carbureter.



UNITED STATES PATENT oFFio.

HUGO HEZINGER, or BALnwI AND CARL HEZINGER, or NEW YORK, N. Y;

oAnBtinETER.

1 Specification of ietters Patent. Application filed May 17, 1911. Serial, No. 627,826.

To all whom it may concern:

Be it known that we, resident of Baldwin, in the county of Nassa l and State of New York, and CARL -2-2inFig.3.

HEZINGER, a resident of the city of New York, borough of Manhattan, inthe county and State of New York, both subjects of the German Emperor, have invented a new and Improved Carburetor, of which the followlng is a full, clear, and exact description.

Among the principal objects which the.

operative cut-cit valve for the gasolene; and

to provide a construction and arrangement for the carburetingchamber Whereinis pre,

vented the accumulation or surplus of gasolene in said chamber. I

One embodimentof the present. invention is disclosed in the structure. illustrated in the accompanying drawings, in whichv like characters of reference. denote corresponding parts in all .the views, and in whichconstructedand arranged in accordance with the present invention; 2 is a longitudinal vertical section .ta en. on the line As seen in the accompanying drawings, the ,carburetin'g chamber is formed within the pendant cylinder 10 which is provided at the upper edge with a bolting flange 11.

The cylinder 10.is provided with an inlet tube 12, the orifice whereof is trued to form seats forthe pin valves 13 and 14. The

. tube 12 extends within the chamber above the bottom thereof and separated therefrom, as best. seen in Fig. 2- of the drawings. The

I ';'opening. of the tube 12 communicates with a bore 15 formed in the boss 16extended from the side of the cylinder 10. Therbore 15 is in open communication with the diminished channel17 the lower end whereof is coned, as shown inv Fig. 2 of the drawings. The

e HUGO HEZINGER, a

Figure 1-.is a side elevation ofa carbureter I between the channel 17 iand'the opening in the tube 12. v A I The lower end of the nipple 20 whereinis formed the channel17 is threaded to regis- Patented Juan, 1912.

threads to register with the screw threaded section. 18 of the plunger 19. The plunger- 19 is in'diameter less'thanthe bore 15 to form a surrounding-passage communicating ter with the threads of the glandnut 21.

The gland nut 21 is provided for connecting this purpose cramping between the flange of the nipple 20 with the supply pipe 22, for I w the said nut and the end'of the nipple 20 the flange 23 provided onthe said pipe,22.

The admission of the 'gasolene as delivered from the pipe 22 to the carbureting chamber is primarily controlled by a plug valve"24:,; in the plug whereof is'to'rined a channel to register with the'extension of the channel't 17 when the lever 25 is disposed as shown in Fig. 2 of the drawings. The passage of the 4 gasolene from the bore 15 to the opening in I the tube 12' is controlled by the pin valve 13 as the same ismoved to and from the said tube 12. To move the pin valve 13 the screw section 18 is rotated, for this purpose being provided with a knurled disk head 26.

Observing the construction" thus far described it will be seen that the maximum flow of gasolene into the opening in the tube 12 may beset by manipulating the head.

26 until the proper qu'antity'isbeing delivcred under what may be termed full open position. The determination of valve 13 having beenarrived at the lock nut.

27 is tightened on the section 18 against the end of the boss 16, thus locking the plunger the pin 19'and pinvalve 13 carried thereby rigidly .in position. By'this arrangement the maximum supply of'gasolene delivered to the earbureting chamber, is varied and controlled. Y Itwill also be observed that by means of the-,lever25,' which maybe operated from the chauifeurs position, the gasolene supply In this may be completely determined. manner when the car is brought to a stand the usual reliance on the [throttle valve is dispensed with, thesupply of gasolene being completely'cut off by themanipulation of the valve 24;. Accidental flooding of the carbureting chamber and accidents and damage incident thereto are thereby avoided.

What is herein termed the operating .con-.

55-.bore 15' is provided with suitable screw trol of the gasolene andexplosive mixture -28 is p'ivotally connected to the bracket 29 'by the pin 30. lever 28 is provided with an eyelet 31 to The opposite end ofthe whichis engaged the connecting link or rod for rocklng the said lever on thepm 30.

i The lever 28 is provided with a ring section drawings.

32 to span the nut 33, .the opening of the ring being sufiicient to permit the necessary movement of the said lever 28. The nut 33 is provided with an annular groovc34 into which is extended the reduced ends of spanner screws 35, as shown best in Fig. 1 ot' the The nut isprovided with a knurled head 36 whereby the said nut may be advanced'or retracted won the threaded section 37 of the containing tube 38. -The nut 33 forms a stop for-the inward swing of the lever 28. The end. ot the said nut normally rests against the side of the bridge 39. The bridge 39 is integrally formed with the bracket 29 and is fastened upon the cylinder 10 by screws 40 which pass through the feet 41 formed on the saidbody, as seen best in Fig. 1 of the drawings.

The tube 38 operates as a guide for the plunger 42, upon the end whereof is formed the pin valve 14. The plunger 42 is provided at the outer end with a knurled head 43, and intermediate the plunger 42and the head-43 is a screw threaded section 44 the threads whereof register with the threads formed within the tube 38. The tube 38 is held in fixed position by the lock nut 51.

The tube 38 is supported within the tube 45. i The tube 45 is integrally formed with .the cylinder 10, being suspended concentric with the opening 46tormed in the said cylinder and therein held by the spider Webs 47, as seen best in Fig. 2 of the drawings. The opening 46 is provided to admit'air to the carbureting chamber. and is closed by a valve 48. The valve 48- is integrally formed on the tube 38 to movetherewith to and from the said opening 46.

As best seen in Fig. 2 of the drawings, the

' bottom of the earbureting chamber is on a level with the edge of the opening 46. This insures against the accumulation wlthm the chamber of an undesirable amount of gasolene. In the operation of the valve 48 the is disposed to completely close the delivery" same is closed only when the throttle valve end of the opening through the tube 12.

hen the lever 25 is operated from the chauffeurs seat of an automobile or similar machine, the eyelet 49 formed in the end thereot" is suitably connected with the operatinglever such asis usually provided tor machines ot this character.

The operation or the invention is as folr lows: It will be understood that when the machine for which the carbureter .is'provided is stopped the lever 25 is so turned that the valve 24 completely closes the channel 17, therefore on starting the machine the first actof the operator is to lift the lever 25 to the position shown in Fig. 2 of the drawings to register the opening through the valve 24 with the extension of the channel 17. Gasolene now flows into the opening through the tube 12. In the fully stopped position, under normal conditions, the pin valve14 closes the delivery opening of the tube 12. It therefore becomes necessary to retract the lever 28 and therewith the tube 38 and plunger 42. Sat:

ficient gasolene is thus admitted to the. I carbureting chamber to produce the explosive mixture needed to start the engine. If it is required that the carbureter shall be primed, this may be'accomplished by ma= nipulating the head 43 to withdraw the pin valve from the delivery opening of the tube 12 while the valve 48 remains closed. This would admit an excess amount of gasolene to the carburetor to overenrich the mixture, and combining with the air in the carbureter form a preliminary or initial over-rich charge. It the carburetor has been primed it becomes necessary to regulate the carbureter to give a uniform mixture. Under heavy load conditions the head 26 and plunger 19 connected therewith are manipulated until there is ascertained and provided a proper flow of gasolene from ascertained the lock nut 27 is tightened and a the supply of gasolene is from thenceforward fixed. The operating conditions for the carbureter are now adjusted. This is accomplished by manipulating the head 36 to adjust the nut 33 to bear against the bridge 39 to limit the inward throw of the lever 28 and thereby prevent the total closure of the vaive 48. During'the adjustment of the nut 33 to regulate the closed position of the valve 48 itwill be understood that the plunger 42 is retracted to give the full open position of the tube 12. In this position of the valve 48 the nut 33 is locked by tightening against the head 36 of the said nut 33 the lock nut 50. The valve 48 being thus set the plunger 42 is moved inward by manipulating the head 43 until the delivery opening of the tube 12. is completely closed. The carbureter is now set for operation during the run of the machine. Itwill be noted that as the lever 28 is moved to and from the cylinder 10 the tube 38 sliding in the tube 45 and bridge 39, the valve 48 is lifted and the pin valve 14 retracted simultaneously. It will be found that the ratio of proportion of the two openings is such that as the valves are brought to their widest open position the air delivery is increased to the maximum; gradually reducing the richness of the explosive fuel to compensate for the increased or high speed conditions.

It will be observed that in the present construction the usual float valve is dispensed with. Also it will be seen that between the cylinder and the gasolene inlet to the carbureting chamber, there is interposed neither a throttle nor other form of control. Therefore, the present construction ofi'ers the advantage of simplicity coupled with eificiency and durability.

Having thus' described our invention,- what we claim as new and desire to secure by LettersPatent is A carbureter such as described, having a bucket-shaped mixing chamber provided in the side wall thereof with an air supply opening; a gasolene supply pipe having an inlet opening into said chamber oppositely disposed to and in line with the center of said opening; a closure valve for said opening suitably mounted on said chamber; means for manually operating said closure valve to expose and close said air supply opening; a needle valve carried by said closure valve and adapted to close the inlet opening of said gasolene supply pipe; and means for adjusting the said'needle valve on the said closure valve to move therewith to regulate the extent of closure of the said gasolene supply pipe in relation to the closure of the said air supply opening.

In testimony whereof we, HUG-o HEZINGER and CARL IIEZINGER have signed our names to this specification in the presence of two subscribing witnesses.

HUGO HEZINGER. CARL HEZINGER. VVitnesses':

- E. F. MURoooK,

PHILIP D. RoLLHAUs. 

